88-Ra-207  basic  element

88-radium-207 Atomic Mass: 207.0037270 +- 0.0004460 amu # Excess Mass: 3472.000 +- 415.000 keV # Binding Energy: 1598445.000 +- 415.000 keV # Beta Decay Energy: B- -7794.000 +- 364.000 keV # "The 1995 update to the atomic mass evaluation" by G.Audi and A.H.Wapstra, Nuclear Physics A595 vol. 4 p.409-480, December 25, 1995. Spin: 2-,3/2-) Half life: 1.3 s Mode of decay: Alpha to Rn-203 Branch ratio: ~90.00 % Decay energy: 7.270 MeV Mode of decay: EC to Fr-207 Branch ratio: ~10.00 % Decay energy: 6.400 MeV Meta state at 0.470 Mev Spin: 13/2+) Half life: 55 ms Mode of decay: IT to Ra-207 Branch ratio: 85.00 % Decay energy: 0.470 MeV Mode of decay: Alpha to Rn-203 Branch ratio: 15.00 % Decay energy: 7.740 MeV Mode of decay: EC to Fr-207 Branch ratio: ~0.35 % Decay energy: 6.870 MeV Possible parent nuclides: Alpha from Th-211 R.R.Kinsey, et al.,The NUDAT/PCNUDAT Program for Nuclear Data,paper submitted to the 9 th International Symposium of Capture-Gamma_raySpectroscopy and Related Topics, Budapest, Hungary, Octover 1996.Data extracted from NUDAT database (Jan. 14/1999)